Recent content by suryanarayan

Can you give me a link to these models?

Hello Guys, I have been pondering on the nature of the frictional force and its dependency on the area of contact for the past few days and I had already searched for plausible explanations for the same.Although I could gather a few discrete points ,I couldn't get a complete picture of it. Some...

As far as Surface tension is concerned,It is a concept that is applicable only to surfaces that separate two fluids.There is no such thing applicable for solids.However,you can find the ST of a nano-fluid once you suspend the particles in the fluid.

As I was going through a course on Hydraulics, there was a brief explanation about how the atmospheric pressure can only support a water column of 10.3 m.A few more points that are prerequisite to the discussion are as follows 1)A fluid cannot be pulled;it has to be pushed. 2)A centrifugal...

Consider a steel rod of diameter 'd'. If the same rod is broken up into strands and arranged parallel to one another so as to form a new rod of the same diameter 'd' ,Which will have a higher load bearing capacity?. Instead of being arranged parallel , If they are made into a rope of similar...

Im currently studying a course on the mechanics of solids..the reference book i use is by Popov..But i can't completely understand the concept of stress in an axial loading.Like for instance. If a weight W acts on a rod(ignore the rod's weight),stress will vary point to point along the...

Can someone give me the correct definition of time dilation(or explain it in such a way that it can be used to tackle any problem)?? What i believe now is "a moving clock ticks more slowly than a clock at rest"..but according to me this is inadequate because there can be two situations...

why is the phase velocity(c^2/v) greater than c?? since v<c it should be greater than c.. how does this happen?

im more confused about the role of clocks...and the connection between these times(t1,t2,t3,t4)

Can anyone explain about time dilation in a simple way? I am confused about these facts: 1) If an observer A at rest relative to a moving spacecraft sees an event e1 in the spacecraft and measures the time interval to be t1 on his clock and t2 on the clock in the spacecraft...

How can i solve differential equations that are reducible to exact form? please explain each method. thanks

i tried to solve this question in all the ways i knew but it wouldn't work ..please help xy^2dy/dx + y = x^2 i tried to solve it by using linear first order differential equation technique and also by using different exact and reducable exact differential equaions... help me

can both time dilation and length contraction occur for the same observer? i don't think it is possible since then c=reduced length/increased time which is impossible(since c is constant)... Am i wrong?

relative velocity and resultant velocity?also in a connected(with strings) pulley system,how can we calculate the acceleration and velocities of the pullies and the masses connected onto it?

i don't know how this works...when a body is projected at an angle "theta" with the horizontal above a height 'h'...what is its maximum height and maximum range?should i just treat it as two separate motions or is there another way to do it...i can solve if it is just a parabolic projection from...